EP 4185631 A1 20230531 - THERMOPLASTIC COMPOSITIONS INCLUDING RECYCLED POLYCARBONATE WITH IMPROVED HYDRO-AGING PERFORMANCE
Title (en)
THERMOPLASTIC COMPOSITIONS INCLUDING RECYCLED POLYCARBONATE WITH IMPROVED HYDRO-AGING PERFORMANCE
Title (de)
THERMOPLASTISCHE ZUSAMMENSETZUNGEN MIT RECYCELTEM POLYCARBONAT MIT VERBESSERTER HYDRO-AGING-LEISTUNG
Title (fr)
COMPOSITIONS THERMOPLASTIQUES COMPRENANT DU POLYCARBONATE RECYCLÉ AYANT UNE MEILLEURE RÉSISTANCE AU VIEILLISSEMENT HYDRIQUE
Publication
Application
Priority
- EP 20187597 A 20200724
- EP 21154811 A 20210202
- IB 2021056603 W 20210721
Abstract (en)
[origin: WO2022018666A1] Thermoplastic compositions include: (a) from about 5 wt% to about 95 wt% of at least one recycled polycarbonate comprising a post-consumer recycled (PCR) polycarbonate; and (b) from about 0.01 wt% to about 2 wt% of an acid component. The post-consumer recycled (PCR) polycarbonate comprises at least 10 mol% -OH endgroup content. In certain aspects the acid component includes mono zinc phosphate (MZP), a liquid solution comprising phosphorous acid, or a combination thereof. The compositions have improved hydro-aging properties as compared to conventional compositions that include recycled polycarbonate.
IPC 8 full level
C08K 3/32 (2006.01); C08K 3/014 (2018.01); C08K 5/00 (2006.01); C08L 69/00 (2006.01); C08L 83/10 (2006.01)
CPC (source: EP US)
C08K 3/32 (2013.01 - EP US); C08L 69/00 (2013.01 - EP US); C08L 83/10 (2013.01 - EP); C08G 77/448 (2013.01 - EP); C08K 2003/328 (2013.01 - EP US); C08K 2003/329 (2013.01 - EP); C08L 2203/20 (2013.01 - US); C08L 2205/025 (2013.01 - EP); C08L 2205/03 (2013.01 - EP US); C08L 2207/20 (2013.01 - US); Y02W 30/62 (2015.05 - EP)
Citation (search report)
See references of WO 2022018666A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022018666 A1 20220127; CN 115989279 A 20230418; EP 4185631 A1 20230531; US 2023348713 A1 20231102
DOCDB simple family (application)
IB 2021056603 W 20210721; CN 202180051786 A 20210721; EP 21743592 A 20210721; US 202118016935 A 20210721